Cipher showed something strange with my A/F ratio
10-08-2006, 06:56 AM
#1
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Cipher showed something strange with my A/F ratio
Apparently, according to the cipher tool. At Idle, bank 1 runs ~15.0 a/f ratio and bank 2 runs ~ 13.9 A/f ratio....Is this even possible? It worries me because my car keeps throwing P1283 (bank 1 lean condition). What on earth could be causing this?
10-08-2006, 11:31 AM
#2
Might want to look into having your widebands checked / calibrated...
Is the injector pulse the same for both banks?
That is a huge discrepancy and it's pretty surprising...
If you have bigger injectors and your injector pulse is like super low, the pulse width could be unpredictable. Maybe you can raise idle and if you have the capability, add a small amount of fuel at no-load...
Is the injector pulse the same for both banks?
That is a huge discrepancy and it's pretty surprising...
If you have bigger injectors and your injector pulse is like super low, the pulse width could be unpredictable. Maybe you can raise idle and if you have the capability, add a small amount of fuel at no-load...
10-08-2006, 02:56 PM
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Idle cannot be raised, the SS box wont allow it sadly. I am going to swap sensors tomorrow and see if the problem shows on the other side, that could tell me if its just the sensor, if its not, i might just have to add some fuel. But how can i do it to only bank 1 (bank 1 is the drivers side right?)
10-08-2006, 03:00 PM
#4
Originally Posted by Vash350Z
Idle cannot be raised, the SS box wont allow it sadly. I am going to swap sensors tomorrow and see if the problem shows on the other side, that could tell me if its just the sensor, if its not, i might just have to add some fuel. But how can i do it to only bank 1 (bank 1 is the drivers side right?)
Last edited by Mike Wazowski; 10-08-2006 at 03:50 PM.
10-08-2006, 03:18 PM
#5
Originally Posted by Vash350Z
Idle cannot be raised, the SS box wont allow it sadly. I am going to swap sensors tomorrow and see if the problem shows on the other side, that could tell me if its just the sensor, if its not, i might just have to add some fuel. But how can i do it to only bank 1 (bank 1 is the drivers side right?)
10-08-2006, 07:46 PM
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Originally Posted by ZU L8R
Did you have Chris try it yesterday?
Yea, thats how i first noticed this issue. My car is an 04.5 so i cannot raise the idle.
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10-09-2006, 08:05 AM
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That's strange, because I am looking at the Cipher V1.03 owners manual, and on page 12, it shows that you can.
Hey Jared at UpRev...can you comment on this.
Thanks,
Joe
Hey Jared at UpRev...can you comment on this.
Thanks,
Joe
10-09-2006, 03:15 PM
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Looked at the sensors today, i do not think they are swappable, they have different clips and the plugs look different. If Bank 1 is indeed the passenger side then i could have a real issue here. My wideband is in the drivers side test pipe so i am not sure what my other side is doing, very very strange.
10-09-2006, 04:35 PM
#12
If you look here:
https://my350z.com/forum/tuning/221676-where-can-i-make-improvements-see-charts-greddy-eu-or-utec-users-chime-in.html
you'll see that my bank 2 is a little leaner than B1. If I am correct in assuming that the driver's side is bank 2 then that is consistent with what ZU L8R is saying.
-Mike
https://my350z.com/forum/tuning/221676-where-can-i-make-improvements-see-charts-greddy-eu-or-utec-users-chime-in.html
you'll see that my bank 2 is a little leaner than B1. If I am correct in assuming that the driver's side is bank 2 then that is consistent with what ZU L8R is saying.
-Mike
10-10-2006, 05:48 AM
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OEM wideband AF sensors can be swapped. I had done that and on my car made no difference.
http://g35driver.com/forums/showthread.php?t=82196
https://my350z.com/forum/engine-and-drivetrain/215703-my-progress-with-cipher-charts-included.html
http://g35driver.com/forums/showthread.php?t=82196
https://my350z.com/forum/engine-and-drivetrain/215703-my-progress-with-cipher-charts-included.html
10-11-2006, 06:10 AM
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I just need to buy a damn cipher lol. I am not sure if i have a bad injector, if i do its not bad enough to cause my car to ping under boost.
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